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10 • Chapter 2 Getting Started DMC-3425
there is a power fault during a firmware update. If EEPROM corruption occurs, your controller may
not operate properly. In this case, install the UPGD Jumper and use the update firmware function on
the Galil Smart Terminal or WSDK to re-load the system firmware.
Setting the Baud Rate on the DMC-3425
The jumpers labeled “9600” and “1200” at JP1 allow the user to select the serial communication baud
rate. The baud rate can be set using the following table:
JUMPER SETTINGS BAUD RATE
9600 1200 --
OFF OFF 19200
ON OFF 9600
OFF ON 1200
The default baud rate for the controller is 19.2k.
Selecting MO as default on the DMC-3425
The default condition for the motor on the DMC-3425 is the servo on (SH) state. This will enable the
amplifiers upon power up of the controller. This state can be changed to the motor off (MO) default by
placing a jumper at JP2 across the MO terminals. This will power up the controller with the amplifiers
disabled and the motor command off. The SH command must then be given in order for the servos or
steppers to operate.
Stepper Motor Jumpers
The DMC-3415 is user configurable to control either a servo motor or a stepper motor. The DMC-
3425 is factory default to servo control, but may also control two steppers if ordered from the factory
as a DMC-3425-Stepper.
To configure the DMC-3415 for stepper output, two jumpers must be placed on the controller. First,
the SMX jumper at location JP2 must be installed. This configures the board for step/direction output.
Second, the jumpers at location JP3 must be moved from the MC position to the SD position as shown
in Figure 2.2. This configures the output pins on the controller to output step and direction instead of
the analog motor command.
The configuration for two stepper motors on the DMC-3425-Stepper is handled at the factory. The
same procedure is used, placing jumpers on SMX and SMY at location JP2, and moving the SD/MC
jumpers at location JP3. A board modification is also required, which should only be handled by Galil
technicians.
MCSD
JP3
MC SD
JP3
Setting for analog motor command Setting for step/direction output
Figure 2.2 - Jumper settings for motor command output